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Hi, I got one one of these a few days ago and what a great piece of kit for the price, I have grasped the basics of it with and getting on great, I tried the PC software NanoVNA Saver by Rune Broberg,

Something I have mentioned on other groups is in order here. For sake of argument (and real life), consider only two types of SWR meters: 1) A meter with multiple power levels selected by switches.

Several reasons: The SWR meter is not well calibrated. Simple diode detectors have error and that varies with power. Transmitter has harmonic content, that tends to increase SWR as the harmonics may

Its a way to permit using attenuation where you need it and allow for gain as needed. I can be used with a different reference such as 75 ohms (any actually) for systems that are not 50 ohms to make

Hi Ron, I first had a similar experience to your's: On the NanoVNA calibrated up to 900 MHz, my broadbanded W3DZZ on 80m first showed much "better SWR" than believable. After the below described

Hi YO2NAA - Funny that you show a blue one; if not directly from transverters-store.com, then probably a bad clone. Specifically, mine from eBay had paired 100 Ohm resistors to obtain 50 Ohms, but one

Hi all, what measurements could be improved, or what additional measurements can be done if using an external RF bridge, like this one: [image: image.png] I've read a lot of messages from the group

For best results always calibrate the same frequency range as you will be measuring. With 900MHz range and only 101 data points the nanoVNA will interpolate the calibration data leading to relevant

To further communicate the point made by Paul, W1IP, the following may be of some enlightenment. If I take 101 points, the max for the NANOVNA and spread the evenly of the max frequency range, that

Paul Are you calibrated for and looking wideband 50 kHz - 900 MHz or calibrated and looking narrowband 3.5 - 4.0 MHz? Confining the 101 data points to the band of interest yields the most detail. Jay

I'm with you Ron, this thing is not right. It show my 80m dipole as having a good match across the entire 75/80 band, lol. It is cut to favor about 3.9, and three analyzers (Comet, MFJ and Rigexpert)

I saw some on thingiverse but decided that none of them had any strain relief for the connectors. From my experience it is the parts that move that cause the most problems.. I designed a two piece

Herb, There are many ways to install Windows drivers. The procedure I wrote works fine for Windows 7 and is repeatable. Unfortunately there are also many variables in all this and each computer

On Sat, Nov 30, 2019 at 11:52 PM, Roger Need wrote: … I got it working. I am leaving the answer here in case ============================================================= So installing the STM32

Thanks everybody. I got it working. I am leaving the answer here in case someone else with Windows 8.1 has the same problem. When I plug in the USB you hear the Windows sound and see the driver trying

I don't think everybody here is a PC guru, and because they aren't, they should be using Linux so they wouldn't have to worry about drivers.? Or rebuilding their computers after an update, or any of

The only one that makes a greter than 3Ah (3350 mah) 18650 is panasonic Sanyo. However there are real and good 2200, 2600 and 2800 cells I use the LG2800mah cells and they are real. However I've seen

This is all fine for accessing the mag of s21. However, I also need its phase. I have not gone through the arithmetic but my concern is diluting the phase term. Dynamic range and a degree of

Check you local library - some have 3d printers for public use - at mine, just take in a thumb drive with the files or give them the URL and they will download and they will print it out for free.

Just a note to say thanks to this group. It's EXTREMELY rare that a handful of pure enthusiasts set up a group, even rarer that the same bunch within a few months can get together some GOOD Wikipages